Tool for demountable rims and the like



J. REICHERT.

TOOL FOR DEMOUNTABLEYRIMS AND THE LIKE.

APPLICATION FILED APR.13.1920.

1,419,75 Patnted June 13, 1922.

.2 SHEETS-SHEET 1 J. REICHE'RT.

TOOL FOR DEMOUNTABLE RIMS AND THE LIKE.

APPLICA'IION FILED APR.13. I920.

Patented June 13, 1922.

2 SHEETS-SHEET 2.

JOHN nnronnnr, or nacrnnwrsooivsrn.

TOOL FOR DEIYIOUNTABLE RIMS AND THE LIKE.

Application filed April 13,

To all whom it may concern Be it known that 1, Joan Rnlorinn'r, a citizen of the United States of America, and resident of Racine, Racine County, State of Wisconsin, have invented certain new and useful Improvements in Tools for Demountable Rims and the like, of which the following is a specification.

This invention relates to certain improvements in tools for demountable rims and the like; and the objects and nature of the invention will be readily understood by those skilled in the art in the light of the following explanation of the accompanying drawings illustrating what I now believe to be the preferred mechanical expression or em-' bodiment of my invention among other forms, constructions and arrangements within the spirit and scope thereof.

It is an object of my invention to provide a tool particularly adapted to be utilized for expanding and contracting demountable rims in applying the same to pneumatic or other tires, the tool being of'simple and in expensive but durable construction, and positive ini ts action so as to be capable of performing the work required without causing buckling of the tool, as is a common fault in tools designed for this purpose, particularly during expansion of a rim.

:It is a further objectof my invention to provide a tool of this character which is readily applied to demountable rims of various sizes, without necessitating special adjustments-of the tool.

. lVith these and other objects in view, my invention consists of certain novel features in construction, and in combinations and arrangements, as more fully and par ticularly set forth, and specified hereinafter.

Referring to the accompanying drawings:-- i k Fig. 1 is a perspective view of a demountable rim having a tire mounted thereon with my improved tool engaging the same in operative position.

Fig. 2, is a horizontal longitudinal section through my improved tool. 7

Fig. 3, is a transverse section through the tool taken in the plane of the line 3-3, Fig.2.

Fig. 4 is a side elevation of the tool applied to a demountable rim and partly broken away to show the operating means.

' tudinally Specification of Letters Patent. Patgnted Jun e 13, 1922 1920. Serial no. 373,488.

igs. 5 and6 are modifications of the rim grlpping means at the respective ends of the tool.

My improved tool is illustrated as applied to a demountable rini' A, and in the embodiment described, comprises a main frame 1, having the expansion rod 2 movable longithereof, through a housing 8, the expansion rod and main frame being provided with hooks at their opposite ends adapted to engagethe demountable rim at diametrically opposite points, to expand or contract the latter by longitudinal movement of the expansion rod in either direction relative to the main frame.

Referring more particularly-to the exemplification of the aforementioned mechanism as illustrated in Figs. 1 to a of the drawings, the main frame-1 is shown as an angle bar including top 1 and side 1 and the expansion rod is instanced as received in the angle of the main frame, which latter forms a gnideway for said expansion rod.

The hooks for engaging the rim A are instanced as a single hook 4,adapted to catch over one edge of the demountable rim. This hook projects beyond one end of the main frame 1, and maybe secured to the top there of as by suitable rivets, *or may be formed as an integral extension 4 of the top of said main frame as illustrated in Fig.

At the end of expansion rod 2 which is opposite the hook-end'of the main frame, a pair of hooks 5, 6, are provided arranged for opening and closing movement toward and awayv from one another, and adapted when closedfto catch over the opposite side edges of the demountable rim.

pansion rod-hook5 for example, eithersuitably secured thereto as by rivets or formed as an integral extension 5 of said expansion These hooks pro ect beyond the end of the expansion rod, and may comprise a hook r gid, with the ex-.

either being cast integral with the expansion rod, or received in the channel of an expansion rod formed from suitable chan nel-iron. The rack preferably extends from the end of the expansion rod opposite its hook end, and may terminate short of said hook-end. It is adapted to mesh with a pinion 9, instanced as journaled inthe main frame at theend thereof opposite its hookend, the top 1 of the main frame at this point being shown as extended outwardly I ily grasped by a wrench, and may be. also provided with a lateral aperture 14: adapted to receive a suitable lever 16 which may be formed as a tire removing tool. The above mentioned parts, including the pinion, its bearing collars and the operating head may be cast integral if found expedient.

The housing 3'is provided for the pinion 9 at its operating connection with the rack of the expansion rod, and may comp-rise a bottom 3 disposed below the pinion and having a lip 17 received beneath the lower edge of side 1 of the main frame; and side 3? outwardly curved to fit around-the pinion. The bottom 3 is instanced'as provided with a bearing aperture 18, arranged to receive the bearing collar 12 of the pinion, and said bearing collar is preferably formed with a shoulder-19 adapted to, rest upon: the bottom of the housing 3 for supporting the pinion 9. Theends of side. 3 of the hous-. ing beyond the outwardly curved central portion, are preferably arranged to abut against the rack of expansion rod 2, as clearly shown in Fig. 2, thereby forming a guideway for said expansion rod; and the spaces at the ends of the housing may be closed by suitable-end members 3, fitting around the expansion rod 2 projecting beyondsaid housing.

The housing 3 may be properly positioned relative to the main frame 1, by suitable pins'20 projecting from the upper edge of the side of the housing arranged to be received in, corresponding apertures provided in the top of the main frame. The housing When thus properly positioned, is provided with retaining means, instanced as bolts 21 received through corresponding apertures in the top of the main frame and the bottom of" housing 3' respectively, the bolts being providedwithsuitable retaining nuts 22.

In operatiomthe rim to be expanded or contracted, is grasped at opposite sides, by

hook 1, and hooks 5, 6, respectively, and by rotating pinion 9 in the proper direction, the expansion rod will be moved longitudinally relative to the main frame in the direction necessary to draw the sides of the rim together, or to force them away from one another asrequired. lVhenthe sides of the rim have been forced into the desired position relative to one another, they may be held in such position by a locking pin 23 arranged to be inserted through either of pairs of alined apertures 24:, 25, in the top of the main frame, and the base of the housing 3 respectively, said alined apertures being preferably arranged at opposite sides of pinion 9, and so positionedthat the. pin 23 when inserted therein, will be received between adjacentteeth of rackS, so as to.

prevent movement of the rack.

However, I do not desire to limit myself to the specific arrangement and position of the locking means as described above. Alined apertures, such as 24, 25 can be so positioned with respect to the pinion 9, that the pin 23, when inserted therein, will be received between adjacent teeth of thepinion, to lock the pinion against rotation and prevent movement of the rack.

It is evident that various changes, modifications and variations might be resorted-to without departingfrom the spirit and scope of my invention, and'hence I do not wish'to I limit myself to the exact disclosure hereof.

That I claim is V 1-. A rim breaker and expander, consisting essentially of a pair of straight elongated members at their outer ends formedto abut the rim and provided withprojectinghooks rigid with their respective members to rest on and catch over the rim, said members fitting one within the other and being'hel-d laterally together for relative longitudinal sliding movement on each other' in opposite directions and against relative lateral move ment, means whereby said members can be temporarily locked against relative longitudinal sliding movement to hold thet rim expanded and contracted, andmanually oper' ate d means establishing operative connection between said members for causing said relative longitudinal movement'of the members to expand andcontract the rim.

2. A rim breaker and expander comprising an elongated push and pull member havpush and pull member formed to push the mg a' longitudinal rack at its inner end portion and at its outer endformedtopush 7 rim andhaving hook means to rest on the rim, the inner end portions of said members fitting one within'the other in longitudinal sliding engagement, said complementary member constructed and arranged" to hold said members laterally together in longitudinal alinement, and a gear mounted in the inner end portion of said complementary member in constant mesh with said rack and .freely rotatable in either direction to cause said relative longitudinal sliding movement of the members in either direction.

3. A rim breaker and expander consisting essentially of an elongated push and pull member having a longitudinal rack and at its outer end formed to operatively engage the rim to push and pull the same, a complementary elongated push and pull member formed to operatively engage the rim to push and pull the same, said complementary member forming a longitudinal guideway in which the inner end portion of said first named member is confined in longitudinal sliding engagement, said complementary member at its inner end portion having a housing confining said members together in approximate longitudinal alinement, and a manually actuated gear carried by the inner end portion of said complementary member and in constant mesh with said rack, said gear being freely rotatable in either direction to cause relative in and out longitudinal movements of said members.

4:. A rim breaker and expander consisting essentially of a pair of elongated push and pull members at their outer ends formed and equipped to operatively engage opposite portions of the rim to push and pull the same, the inner end portions of said members fitting one within the other in longitudinal sliding engagement, said members being held in lateral engagement in appproximate longitudinal alinement, one of said members having a longitudinal portion laterally projecting over the other member, gearing carried by and establishing operative connection between said members for actuating the members on said relative longitudinal sliding movements, said member having said longitudinal portion being provided with a pin hole alined with a portion of said gearing and adapted to guide a removable looking pin into said gearing and hold the same in position temporarily locking said members against longitudinal movement.

JOHN REIOHERT. 

